@article{oai:tsukuba.repo.nii.ac.jp:00015693,
 author = {Kielpinski, Roman},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {191--202},
 title = {Polynomial type Hopf algebras},
 volume = {7},
 year = {1983}
}